.post-list-group{
    overflow: hidden;
    margin-top: 20px;
}
.post-list-group li{
    overflow: hidden;
    padding-bottom: 20px;
}
.author-avatar-group img{
    width: 50px;
    height: 50px;
    float: left;
    border-radius: 50%;
}
.post-info-group{
    float: left;
    margin-left: 10px;
    border-bottom: 1px solid #e6e6e6;
    padding-bottom: 10px;
    width: 85%;
}
.post-info{
    margin-top: 10px;
    font-size: 12px;
    color: #8c8c8c;
}
.post-info span{
    margin-right: 10px;
}